Rotary engine.



J. R. KINNEY. ROTARY ENGINE.

APPLICATION TILED MAY 11, 1-909.

Patented Mar. 8, 1910.

2 SHEETS-BHEET 1.

ANDREW a GRAHAM CO FHOTO-LII'HQURAPMERS. WASMNGYOIL I; a

' J. R. KINNEY,

ROTARY ENGINE.

APPLICATION FILED MAY 11. 1909.

9513235 Patented Man a, 19m.

2 SHEETS-SHEET 2.

111T it JUSTT JS R. KINNEY, OF ID0313.015113]STEBI, MASSACHUSETTS.

ROTARY ENGINE.

Specification of Letters Patent.

Application filed May 11, 1909.

To all whom it may concern:

Be it known that I, JUsTUs R. KINNEY, a citizen of the United States ofAmerica, and a resident of Dorchester, in the county of Suffolk andState of Massachusetts, have in vented certain new and usefulImprovements in Rotary Engines, of which the following is aspecification.

This invention relates to rotary engines and has for its object a novelmeans of in troducing the steam or other motive agent into the pistonchamber by admitting it through a shallow groove in the end of a pivotedblade co-acting with the piston, this groove having a radial shoulderagainst which the motive agent acts to retain the shoe of the pivotedblade in contact with the piston throughout its rotation, theeccentricity of the piston serving to permit, during one portion of itsrotation, the grooved portion of the pivoted blade to enter the pistonchamber and admit the motive agent thereto, while during another portionof the movement or rotation of said piston the pivoted blade is movedinto a position whereby the admission of the motive agent is cut off.

The invention consists in certain novel features of construction andarrangement of parts which will be readily understood by reference tothe description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a vertical section of an engineembodying the features of this invention. Fig. 2 repre sents ahorizontal section of the same, the cutting plane being on line 2-2 onFig. 1. Fig. 3 represents an enlarged end view of the pivoted blade, andFigs. 4 and 5 represent respectively partial sections through thepacking members, the cutting planes being on lines 4 and 5 of Fig. 1.

Similar characters designate like parts throughout the drawings.

In the drawings, represents a suitable casing provided with supportingfeet 11 having openings 12 therein by which the casing may be secured inposition.

The casing is provided with two interior cylindrical piston chambers 13in each of which is revolubly mounted an eccentric piston 14 secured toand revoluble with the shaft 15 centrally disposed within the pistonchamber 13. Each side wall of the pistons 14 is provided with a packing16 forced outwardly by means of a plurality of springs into contact withthe side walls of the piston chamber 13. That part of the periphery ofthe piston 14 farthest removed from the axis of the shaft 15 is providedwith a packing member 17.

The steam or other motive agent is admitted to the interior of thecasing 10 through an inlet pipe 19. Each piston chamber 13 is connectedby means of a passage 20 with a chamber 21 with which communicates theoutlet pipe 22. From the inlet pipe 19 a passage 23 communicates withthe chamber 21.

Co-acting with the periphery of each piston 14 is a shoe 24 pivotallyconnected at 25 to a blade 26 pivoted at 27 to the casing 10.

The two pistons 14 are oppositely disposed as indicated in full and indotted lines in Fig. 1 of the drawings.

The division member 28 interposed between the two piston chambers 13 isprovided with a socket 29 into which extends the slotted cylindricalstem 30 of a forked member 31 in which is pivoted on the pin 32 therocker member 33.

Each end of the rocker member 33 is provided with a semi-sphericalsocket 34 in which rests the rounded end of a cylindrical strut 35, theopposite end of which is rounded and rests in a semi-spherical socket 36formed in a boss 37 upon the pivoted blade 26.

The position of the pivot 32 relative to the axis of the revoluble shaft15 is accurately determined so that in the rotation of the oppositelydisposed pistons 14 the outward movement of one of the pivoted blades 26will act upon the rocker beam 33 through one of the struts to force theshoe 24 of the other pivoted blade 26 into engagement with the otherpiston 14. As the pistons 14 continue to rotate in their chambers 13 theoutward movement of one of the pivoted blades. 26' will always be actingthrough the rocker member 33 to retain the shoe 24 of the other pivotedblade 26 in engagement with the other piston throughout its rotation.

By providing the semi-spherical sockets 34 and 36 for the rounded endsof the struts 35 these struts are permitted to move in any direction toaccommodate themselves to the various angular movements of the pivotedblade 26 and rocker members 33.

When any wear occurs upon the shoe 24 the wear may be taken up by meansof the wedge 38 extending through a slot 39 in the stem or shank 30 ofthe forked member 31. This wedge 38 is adapted to be moved transverselyof said slot 39 by means of the revoluble member 40 threaded to thecasing 10 at 41 and locked in adjusted position by means of the lock nut42. It is obvious that by adjusting this member 40 the pivot pin 32 maybe adjusted toward and from the re'voluble shaft 15. This makes apositive device interposed between the two opposed pistons adapted tooperate in such a manner that the movement of one piston against itspivoted blade will insure the contact of the other pivoted blade againstthe periphery of the other piston at all times.

The outer end "of the pivoted blade 26 is made concentric to the pivot27 and is provided with a shallow groove 43 open at one end, asindicated at 44, Fig. 3, while the opposite endis provided with a radialshoulder 45. Opposite to the end of the pivoted blade 26 and set intogrooves in the casing 10 are the packing members 46 and 47. I

The packing members 46 are each provided with extension 48 whichaccurately fit the shallow groove 43 in the end of the pivoted blade 26and are held in position against the end of the blade 26 by means of thespring 49 resting in a groove 50 in each packing member, all as shown inFig". 4 of the drawings.

The packing member 47 has no extension 48 thereon but simply bears uponthe face of theend of the pivoted blade 26 on either side of the shallowgroove 43. The motive agent therefor entering through the inlet pipe 19and the passages 26 will be admitted to this shallow groove 43 and canpass through the groove 43 beneath the packing member 47 and act uponthe radial wall 45 to retain the shoe 24 in contact with the piston 14at all times. As the steam or other motive agent is admitted in theshallow groove 43 it is obvious that it acts upon one end of the pivotedblade to retain its pivoted end in its seat. Owing to the extensions 48on the packing members 46 the steam admitted through the passages 23 isprevented from passing by these members 46 into the chamber 21. heneve'rin the rotation of the piston 14 the pivoted blade 26 is moved about itspivot 27 sufliciently far 't'ojpe'rmit the radial shoulder 45 to passbeyond the opposing face of the casing 10, it is obvious that acommunication will be made from the inlet pipe through the passages 23and the shallow groove 43 with the interior of the piston chamber 13 andthe steam or other motive agent will continue to be admitted in thismanner until in the rotation of the piston 14 the blade 20 is moved inthe opposite direction sufliciently far for the shallow groove 43 to beagain covered by the opposing face of the casing 10 when furtheradmission to the piston chamber will be cut oil".

It is obvious that, owing to the two pistons 14 being oppositelydisposed, when the steam is being cut oif from one piston chamber it isbeing admitted to the other piston chamber and a continuous rotation ofthe shaft 15 is thus provided.

This provides a ready means for admitting the motive agent to the pistonchamber at the proper times to eiiectually rotate the pistons thereinand very eilcctnally cut 011' the supply of steam to the chamber at suchtimes during the rotation of the piston that it is necessarily adetriment to the proper operation of the piston.

Having thus described my invention, 1

I claim:

1. In a rotary engine, the combination with a casing provided with apiston chamber; a piston revolublc therein and contacting with the wallthereof; a pivoted blade co-acting with said piston and having in itsouter face a shallow groove closed at one end; a packing member in saidcasing bearing upon the outer face of said pivoted blade and providedwith an extension extending into said groove; and an inlet to saidgroove between said packing member and the closed end of said groove.

2. In a rotary engine, the combination with a casing provided with apiston chamher; a piston revoluble therein and contacting with the wallthereof; a pivoted blade co-actin'g with said piston and having in itsouter face a shallow groove closed at one end; a packing member in saidcasing extending into said groove and another packing member bearingagainst the face of said pivoted blade intermediate said groove packingmember and said piston chamber: and an inlet to said groove between saidgroove packing member and the closed end of said groove.

Signed by me at 4 Post Oiiice Sq, Boston, Mass, this 8th day of May,1909.

JUSTUS R. KINNEY.

VVitne's'ses: I

lVAL'rnR E. LOMBARD, NATHAN C. Lonnirnn.

